'Ghosts of the Abyss'

It's appropriate that in the same week his re-engineered "Titanic" comes to home video, James Cameron's documentary that finds him and that film's Bill Paxton among those examining the actual ship's wreckage also gets a 3-D relaunch.

Using specially designed camera equipment, the filmmaker explores hard-to-reach areas of the sunken ship, adding dramatic techniques to re-create what might have happened in the vessel's final hours afloat. *** (PG: P) (Also on Blu-ray)